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Number of neutrons in C^(12) and C^(14) ...

Number of neutrons in `C^(12) and C^(14)` are

A

8 and 6

B

6 and 8

C

6 and 6

D

8 and 8

Text Solution

Verified by Experts

The correct Answer is:
A
As, `4xx10^(3)=10^(20)xxhf`
`implies f=(4xx10^(3))/(10^(20)xx6.023xx10^(-34))=6.64xx10^(16)Hz`
The obtained frequency lies in the band of X-rays.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ATOMS, MOLECULES AND NUCLEI -Exercise 1 (TOPICAL PROBLEMS)
  1. A nucleus splits into two nuclear parts having radii in the ratio 1:2 ...

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  2. The mass defect in a particular nuclear reaction is 0.3 grams. The amo...

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  3. Number of neutrons in C^(12) and C^(14) are

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  4. The density of a nucleus of mass number A is proportional to

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  5. The stable nucleus that has a radius 1//3 that of Os^(189) is-

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  6. Let binding energy per nucleon of nucleus is denoted by E(bn) and radi...

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  7. The nuclear force

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  8. If M(A,Z), M(p)and M(n) denote the masses of the nucleus .(Z)X^(A), pr...

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  9. What is the Q-value of the reaction? ""^(1)H+""^(7)Lito ""^(4)He+""^...

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  10. Binding energy per nucleon relation with mass number

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  11. The curve of blinding energy per nucleon as a function of atomic mass ...

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  12. Atomic mass of ""6C^(13) is 1300335 amu and its mass number is 13.0 If...

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  13. Let N(beta) be the number of beta particles emitted by 1 gram of Na^(2...

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  14. A radioactive decay can form an isotope of the original nucleus with t...

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  15. The half-life of a radioactive substance is 20 min. the time taken bet...

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  16. A uranium nucleus ""(92)U^(238) emits and alpha-particle and a beta-pa...

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  17. ""(92)"U"^(235) undergoes successive disintegrations with the end prod...

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  18. A nucleus with Z =92 emits the following in a sequence: alpha,beta^(...

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  19. Half life of a radio-active substance is 20 minutes. The time between ...

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  20. The fraction of atoms of radioactive element that decays in 6 days is ...

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